Learn about neuroplasticity and how you can change the inside of your brain. I believe the tricky part is not to understand something very complex but to learn how to unlearn something that is very hardwired. When I say very hardwired falls short of reality. Is engrained on our nervous system. The core aspect of our personalities. To make such change... Well If I´m being honest maybe it can´t be done. Is too deep. But I am positive that, on time and repetition, it is posible for all people to weaken the neuronal pathway. Make you "less" stutterer.